US10661105B2 - Respirator and head-mounted protective apparatus - Google Patents

Respirator and head-mounted protective apparatus Download PDF

Info

Publication number
US10661105B2
US10661105B2 US15/147,048 US201615147048A US10661105B2 US 10661105 B2 US10661105 B2 US 10661105B2 US 201615147048 A US201615147048 A US 201615147048A US 10661105 B2 US10661105 B2 US 10661105B2
Authority
US
United States
Prior art keywords
spool
respirator
filter layer
filter
filter layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US15/147,048
Other languages
English (en)
Other versions
US20170050056A1 (en
Inventor
Rui Xu
Xiaochuan Chen
Haisheng Wang
Lei Wang
Ming Yang
Qian Wang
Pengcheng LU
Peng Liu
Shengji Yang
Yingming Liu
Jiantao Liu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Beijing BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Assigned to BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. reassignment BOE TECHNOLOGY GROUP CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, XIAOCHUAN, LIU, JIANTAO, LIU, PENG, LIU, YINGMING, LU, Pengcheng, WANG, HAISHENG, WANG, LEI, WANG, QIAN, XU, RUI, YANG, MING, YANG, Shengji
Publication of US20170050056A1 publication Critical patent/US20170050056A1/en
Application granted granted Critical
Publication of US10661105B2 publication Critical patent/US10661105B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/10—Respiratory apparatus with filter elements
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10—Valves
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination

Definitions

  • the present disclosure relates to the field of protective appliances, in particular, to a respirator and a head-mounted protective apparatus.
  • a respirator as common protective equipment, is widely used in daily life and industrial production, for example, a surgical respirator is used to prevent from droplet infections, an anti-dust respirator is used to avoid inhaling of dusts having diameter more than 5 micrometers per particle, an N90 or N95 respirator is used to absorb PM2.5 particles in the air, or a cotton respirator is used to keep facial temperature in a cold environment.
  • a surgical respirator is used to prevent from droplet infections
  • an anti-dust respirator is used to avoid inhaling of dusts having diameter more than 5 micrometers per particle
  • an N90 or N95 respirator is used to absorb PM2.5 particles in the air
  • a cotton respirator is used to keep facial temperature in a cold environment.
  • a user needs to prepare a number of different respirators, and needs to replace his respirator in response to different usages required by changing occasions, and it is inconvenient to carry and use those respirators.
  • filter cartridges of some respirators can be replaced, different types of filter cartridges can be replaced according to different environments so as to implement corresponding protection functions, however, many filter cartridges are still required to be carried and manually replaced, thus it is inconvenient to carry and use such respirators.
  • respirator in the present disclosure, in which multiple filter layers of different filtering properties are integrated.
  • the filter layers can be switched depending on different occasions, thereby improving the convenience of use of the respirator.
  • a respirator including a respirator body.
  • a breathing passage is formed in the respirator body for airflow caused by breathing of a user.
  • the respirator further includes a filter layer switching device and at least two filter layers of different filtering properties, and the filter layer switching device is installed on the respirator body and is used to switch filter layers located below the breathing passage according to requirements.
  • the user can transfer a filter layer of a required performance to a region below the breathing passage using the filter layer switching device based on his own requirement for air filtration. Air breathed in or breathed out by the user passes through the breathing passage via the filter layer, a particulate matter or a special gas in air of the ambient environment is filtered by the filter layer. Moreover, when air quality of the environment where the user is located is changed, a filter layer of a proper filtering performance is transferred into use by the filter layer switching device. Since corresponding filter layers of the respirator can be switched into use depending on different occasions, the use of the respirator is more convenient.
  • the respirator may further include an air detection module and a control module in signal communication with the air detection module.
  • the air detection module may be used to detect a particulate matter concentration or a special gas concentration of the air in the air outside the respirator and transmit information of the particulate matter concentration or the special gas concentration to the control module.
  • the control module may be used to compare the information of the particulate matter concentration or the special gas concentration with a preset particulate matter concentration threshold or a preset special gas concentration threshold, and generate a filter layer switching signal in response to a determination result that the particulate matter concentration or the special gas concentration in the air outside the respirator is beyond the preset particulate matter concentration threshold or the preset special gas concentration threshold stored in the control module, and the filter layer switching device can switch the switch filtering layers below the breathing passage according to the filter layer switching signal.
  • a signal generation device for generating the filter layer switching signal in the control module may be an electrical signal generating device, and the electrical signal generating device may be in signal communication with the filter layer switching device.
  • a signal generation device for generating the filter layer switching signal in the control module may be an acousto-optic alarm device or a vibration alarm device, and the filter layer switching device may include a switch for controlling installment and removal of the filter layers.
  • the filter layer switching device may include a filter layer retractable mechanism.
  • the filter layer retractable mechanism may include a first spool and a second spool which are symmetrically arranged at two sides of the breathing passage, the first spool is rotatable about an axis of the first spool and the second spool is rotatable about an axis of the second spool.
  • the at least two filter layers of different filtering properties are each a continuous strip and are connected with each other, two ends of the at least two filter layers of different filtering properties connected with each other are wound on the first spool and the second spool, and extended portions of the at least two filter layers of different filtering properties connected with each other are located below the breathing passage.
  • the extended portions of the at least two filter layers of different filtering properties connected with each other are driven to move below the breathing passage by rotation of the first spool and the second spool.
  • a sealing device may be disposed on the respirator body for increasing sealability between the respirator body and the face of the user.
  • the sealing device may include a deformable nose clip located at a location where the respirator body is in contact with the nose of the user, or the sealing device may include a sealing strip located at a peripheral location where the respirator body is in contact with the face of the user.
  • the respirator may further include a fixing band for fixing the respirator to the face of the user.
  • the filter layer switching device includes a switch for controlling switching of the filter layers, and the switch may be disposed on the fixing band.
  • a head-mounted protection apparatus is further provided in the present disclosure, including a respirator described above.
  • FIG. 1 is a schematic tri-dimensional structural view of a respirator according to some embodiments of the present disclosure.
  • FIG. 2 is a schematic sectional view of a respirator according to some embodiments of the present disclosure.
  • a respirator is provided according to some embodiments of the present disclosure.
  • the respirator includes a respirator body 10 , where a breathing passage 11 is formed in the respirator body 10 for airflow when a user breathes.
  • the respirator further includes a filter layer switching device 20 and two filter layers of different filtering properties, i.e., a first filter layer 201 and a second filter layer 202 .
  • the filter layer switching device 20 is installed on the respirator body 10 and is used to switch the filtering layers below the breathing passage 11 according to requirements.
  • the respirator body 10 is cupped; in practice, a planer respirator body fully fitted to the face of the user may be used, so as to suit different occasions.
  • the breathing passage 11 includes multiple through-holes for entrance and exit of air, which are provided in the respirator body 10 and correspond to an oronasal region of the user.
  • a breathing passage of other structure for entrance and exit of air may be alternatively used.
  • more than two filter layers of different filtering properties may be used for suiting various occasions.
  • the filter layer switching device 20 can implement automatic switching function of the filter layers according to a specific embodiment shown in FIG. 2 .
  • the filter layer switching device 20 includes a filter layer retractable mechanism 21 , which includes a first spool 211 and a second spool 212 which are symmetrically arranged at two sides of the breathing passage.
  • Each of the first spool 211 and the second spool 212 is capable of rotating about its own axis.
  • a motor is used to drive the first spool 211 and the second spool 212 to rotate.
  • the motor can be in signal communication with a control module 40 or with a switch 22 , such that the motor is automatically or manually controlled to drive the first spool 211 and the second spool 212 to rotate.
  • the first filter layer 201 and the second filter layer 202 are each a continuous strip. A first end of the first filter layer 201 is wound on the first spool 211 , a second end of the second filter layer 202 is wound on the second spool 212 , and a second end of the first filter layer 201 is connected to a first end of the second filter layer 202 . An extended portion of the first filter layer 201 and an extended portion of the second filter layer 202 are located below the breathing passage 11 .
  • the extended portion of the first filter layer 201 and the extended portion of the second filter layer 202 are driven to move below the breathing passage 11 , thereby realizing that only one type of filter layer is extended below the breathing passage 11 .
  • more than two filter layers of different filtering properties may be used for suiting various occasions.
  • extended portions of the first filter layer 201 and the second filter layer 202 which are respectively wound on the first spool 211 and the second spool 212 are driven to move below the breathing passage 11 by rotating the first spool 211 and the second spool 212 .
  • a required filter layer is transferred to a region below the breathing passage 11 by means of controlling a rotation number of the first spool 211 and a rotation number of the second spool 212 , i.e., switching of filter layers of different filter performances can be performed.
  • a filter layer switching device of other structure may be alternatively used for implementing switching function of the filter layers.
  • filter layers of different filtering properties which are connected end-to-end are disposed on a cyclic structure, the cyclic structure is rotated such that a certain filter layer can be located below the breathing passage 11 , thereby implementing switching of the filter layers, which is not detailed herein.
  • the user can transfer a filter layer of a required performance to a region below the breathing passage 11 using the filter layer switching device 20 based on his own requirement for air filtration.
  • Air breathed in or breathed out by the user enters into or exits from the breathing passage 11 via the first filter layer 201 or the second filter layer 202 , a particulate matter or a special gas in air of the ambient environment outside the respirator is filtered by the first filter layer 201 or the second filter layer 202 such that the amount of a harmful particulate matter or gas inhaled in by the user is reduced.
  • the user may use the filter layer switching device 20 to switch a current filter layer into a filter layer of a corresponding filtering performance, for suiting usage requirement under the current occasion. Since corresponding filter layers of the respirator can be switched into use depending on different occasions, the use of the respirator is more convenient.
  • the respirator includes an air detection module 30 and a control module connected 40 to the air detection module 30 .
  • the air detection module 30 is used to detect a particulate matter concentration or a special gas concentration in the air outside the respirator and transmit information of the particulate matter concentration or the special gas concentration to the control module 40 .
  • the control module 40 is used to compare the information of the particulate matter concentration or the special gas concentration with a preset particulate matter concentration threshold or a preset special gas concentration threshold, and generate a filter layer switching signal in response to a determination result that the particulate matter concentration or the special gas concentration in the air outside the respirator is beyond the preset particulate matter concentration threshold or the preset special gas concentration threshold stored in the control module 40 , such that the filter layer switching device 20 can switch a filter layer located below the breathing passage according to the filter layer switching signal.
  • a signal generation device for generating the filter layer switching signal in the control module 40 is an electrical signal generating device, and the electrical signal generating device is in signal communication with the filter layer switching device 20 .
  • the control module 40 determines a filter layer of a corresponding filtering performance suited for the particulate matter concentration or the special gas concentration and transmits an electrical signal indicating switching to the determined filter layer to the filter layer switching device 20 , and then the filter layer switching device 20 automatically switches the filter layer of the corresponding filtering performance to a region below the breathing passage 11 , thereby satisfying usage requirements under the particulate matter concentration or the special gas concentration.
  • a signal generation device for generating the filter layer switching signal in the control module 40 is an acousto-optic alarm device or a vibration alarm device
  • the filter layer switching device 20 includes a switch 22 for controlling switching of the filter layers.
  • the user can manually transfer a required filter layer into use through controlling the switch 22 .
  • a sealing device is disposed on the respirator body for increasing sealability between the respirator body and the face of the user.
  • the sealing device includes a deformable nose clip located at a location where the respirator body is in contact with the nose of the user.
  • the sealing device may include a sealing strip 50 located at a peripheral location where the respirator body is in contact with the face of the user.
  • the sealing strip 50 may be made of a material of good air impermeability, such as silica gel.
  • the respirator further includes a fixing band 60 for fixing the respirator to the face of the user.
  • the filter layer switching device includes a switch 22 for controlling switching of the filter layers
  • the switch 22 may be disposed on the fixing band 60 .
  • a head-mounted protection apparatus is further provided in the present disclosure, including a respirator described above.
  • the head-mounted protection apparatus may be a helmet, a protective mask or the like.
  • different filter layers may be switched according to occasions of different air qualities, such that the amount of a harmful particulate matter or gas inhaled by the user is reduced, and the use of the protection apparatus is more convenient.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
US15/147,048 2015-08-18 2016-05-05 Respirator and head-mounted protective apparatus Active 2039-02-23 US10661105B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201510509233 2015-08-18
CN201510509233.9A CN105077745B (zh) 2015-08-18 2015-08-18 一种口罩及头戴防护设备
CN201510509233.9 2015-08-18

Publications (2)

Publication Number Publication Date
US20170050056A1 US20170050056A1 (en) 2017-02-23
US10661105B2 true US10661105B2 (en) 2020-05-26

Family

ID=54559786

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/147,048 Active 2039-02-23 US10661105B2 (en) 2015-08-18 2016-05-05 Respirator and head-mounted protective apparatus

Country Status (2)

Country Link
US (1) US10661105B2 (zh)
CN (1) CN105077745B (zh)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017156137A1 (en) * 2016-03-10 2017-09-14 Honeywell International Inc. Compact powered air purifying respirator with auto-change filter and built-in end of service life indicator
CN105999574A (zh) * 2016-06-29 2016-10-12 武汉东方思创应急装备科技有限公司 智能自动隔绝环境中有害气体的压缩氧气自救器
CN107647499A (zh) * 2017-11-19 2018-02-02 宁波市晶杰国际物流有限公司 卷轴式替换内层童装
CN107802043A (zh) * 2017-11-19 2018-03-16 宁波市晶杰国际物流有限公司 一种内层布料旋转式童装
CN107822217A (zh) * 2017-11-19 2018-03-23 宁波市晶杰国际物流有限公司 内层布料旋转式童装
CN107822218A (zh) * 2017-11-19 2018-03-23 宁波市晶杰国际物流有限公司 滚轮式替换内层童装
CN107637889A (zh) * 2017-11-19 2018-01-30 宁波市晶杰国际物流有限公司 一种卷轴式替换内层童装
CN107668798A (zh) * 2017-11-19 2018-02-09 宁波市晶杰国际物流有限公司 一种滚轮式替换内层童装
CN110250611B (zh) * 2019-04-17 2021-01-05 江西欧丽达实业有限公司 方便穿戴的防雨面罩
EP4257170A3 (en) * 2019-10-31 2023-11-08 ResMed Sensor Technologies Limited Systems for smart humidification
US11617906B2 (en) * 2019-12-20 2023-04-04 Optrel Holding AG Mouth protection device for a respiratory protection system
CN111150149A (zh) * 2020-03-08 2020-05-15 郑州大学第一附属医院 一种防护层可以随时更换的医用口罩
CN111227354B (zh) * 2020-03-09 2021-10-12 路宏燕 医用防菌面罩
CN111466633A (zh) * 2020-03-13 2020-07-31 南昌大学 一种基于压差检测原理可自动更换滤芯的口罩
IT202000006862A1 (it) * 2020-04-01 2021-10-01 Sweden & Martina Spa Maschera facciale o dispositivo individuale per la protezione delle vie respiratorie dell'uomo
KR102223396B1 (ko) * 2020-07-27 2021-03-05 서울대학교산학협력단 탄성물질의 스트레쳐와, 이를 포함하는 통기성 조절이 가능한 에어필터 유닛, 및 에어필터 유닛을 포함하는 마스크
KR102272017B1 (ko) * 2020-04-06 2021-07-05 서울대학교산학협력단 통기성 조절이 가능한 에어필터 유닛 및 이를 포함하는 마스크
WO2021206256A1 (ko) * 2020-04-06 2021-10-14 서울대학교산학협력단 탄성물질의 스트레쳐와, 이를 포함하는 통기성 조절이 가능한 에어필터 유닛, 및 에어필터 유닛을 포함하는 마스크
CN111657594B (zh) * 2020-06-29 2022-03-01 河南亚都实业有限公司 一种头戴式两用口罩
CN112401351A (zh) * 2020-12-28 2021-02-26 华北理工大学 防尘口罩
CN115869558B (zh) * 2023-02-22 2023-06-02 烟台市丹叶电器有限公司 一种可连续更换滤材式防尘呼吸器

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446576A (en) 1980-11-17 1984-05-08 Masauki Hisataka Safe guard protective equipment for fighting art
US5511541A (en) * 1995-08-04 1996-04-30 Dearstine; Walter R. Warm air mask
US20060130834A1 (en) * 2004-12-20 2006-06-22 Yu-Hu Chen Portable breathing apparatus
US20070006557A1 (en) * 2005-07-05 2007-01-11 Treatyou Medical Technology Co. Filter system for respiratory mask and method of implementing the filter system
US20070068529A1 (en) * 2005-09-27 2007-03-29 Suresh Kalatoor Respirator that uses a polymeric nose clip
US20080245364A1 (en) * 2007-04-03 2008-10-09 Keith Patterson Filtering respirator with nasal and oral separation
US20090065006A1 (en) * 2007-09-07 2009-03-12 Keith Patterson Filtering respirator with rotatable filter
CN201304121Y (zh) 2008-11-04 2009-09-09 江苏大学 一种可自动更新滤纸的多功能空气净化灭菌机
US20130104733A1 (en) * 2011-10-26 2013-05-02 Elwha, Llc Air-treatment mask systems, and related methods and air-treatment masks
CN103402585A (zh) 2011-02-28 2013-11-20 兴研株式会社 空气净化装置以及用于预测空气净化装置的突破时间的方法
CN203457840U (zh) 2013-08-06 2014-03-05 西安科技大学 一种便于更新滤膜的防尘口罩
CN103622178A (zh) 2013-10-25 2014-03-12 季忠杰 口罩
CN103976483A (zh) 2013-02-07 2014-08-13 深中海医疗用品（深圳）有限公司 一种可更换滤芯的口罩
CN203790466U (zh) 2014-04-04 2014-08-27 陈康 一种带显示、过滤材料可再生的空气净化头盔
CN104814544A (zh) 2015-05-27 2015-08-05 京东方科技集团股份有限公司 一种智能穿戴设备
US20160121144A1 (en) * 2014-11-05 2016-05-05 Elwha Llc Air filtering devices and methods

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446576A (en) 1980-11-17 1984-05-08 Masauki Hisataka Safe guard protective equipment for fighting art
US5511541A (en) * 1995-08-04 1996-04-30 Dearstine; Walter R. Warm air mask
US20060130834A1 (en) * 2004-12-20 2006-06-22 Yu-Hu Chen Portable breathing apparatus
US20070006557A1 (en) * 2005-07-05 2007-01-11 Treatyou Medical Technology Co. Filter system for respiratory mask and method of implementing the filter system
US20070068529A1 (en) * 2005-09-27 2007-03-29 Suresh Kalatoor Respirator that uses a polymeric nose clip
US20080245364A1 (en) * 2007-04-03 2008-10-09 Keith Patterson Filtering respirator with nasal and oral separation
US20090065006A1 (en) * 2007-09-07 2009-03-12 Keith Patterson Filtering respirator with rotatable filter
CN201304121Y (zh) 2008-11-04 2009-09-09 江苏大学 一种可自动更新滤纸的多功能空气净化灭菌机
CN103402585A (zh) 2011-02-28 2013-11-20 兴研株式会社 空气净化装置以及用于预测空气净化装置的突破时间的方法
US20130104733A1 (en) * 2011-10-26 2013-05-02 Elwha, Llc Air-treatment mask systems, and related methods and air-treatment masks
CN103976483A (zh) 2013-02-07 2014-08-13 深中海医疗用品（深圳）有限公司 一种可更换滤芯的口罩
CN203457840U (zh) 2013-08-06 2014-03-05 西安科技大学 一种便于更新滤膜的防尘口罩
CN103622178A (zh) 2013-10-25 2014-03-12 季忠杰 口罩
CN203790466U (zh) 2014-04-04 2014-08-27 陈康 一种带显示、过滤材料可再生的空气净化头盔
US20160121144A1 (en) * 2014-11-05 2016-05-05 Elwha Llc Air filtering devices and methods
CN104814544A (zh) 2015-05-27 2015-08-05 京东方科技集团股份有限公司 一种智能穿戴设备

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Machine Translation of CN203457840 (Year: 2015). *
Office Action regarding Chinese Patent Application No. 201510509233.9, dated Mar. 21, 2016. Translation provided by Dragon Intellectual Property Law Firm.
Second Office Action regarding Chinese application No. 201510509233.9, dated Sep. 26, 2016. Translation provided by Dragon Intellectual Property Law Firm.
Third Office Action regarding Chinese Application No. 201510509233.9, dated Apr. 17, 2017. Translation provided by Dragon Intellectual Property Law Firm.

Also Published As

Publication number Publication date
CN105077745B (zh) 2018-03-23
CN105077745A (zh) 2015-11-25
US20170050056A1 (en) 2017-02-23

Similar Documents

Publication Publication Date Title
US10661105B2 (en) Respirator and head-mounted protective apparatus
EP3474958B1 (en) Indicating hazardous exposure in a supplied air respirator system
US20200353294A1 (en) Respirator
WO2018188600A1 (zh) 一种空气净化装置面罩
JPS60155706A (ja) 作業ヘルメツト
KR102116608B1 (ko) 미세 입자 제거용 고체산소 내장형 마스크
CN113453766B (zh) 用于在使用者的面部前方产生空气幕的装置
CN203194645U (zh) 一种带有防尘口罩的安全帽
KR102151164B1 (ko) 안면 마스크
EP3094384B1 (en) Oxygen supply with carbon dioxide scrubber for emergency use
KR20160082190A (ko) 다기능 안전면체
US20210331006A1 (en) Head-mounted Air Purifier
CN212141186U (zh) 防护头罩
KR20190001328A (ko) 탈부착식 방재 마스크
KR102000336B1 (ko) 긴급 대피용 마스크 패키지 및 그의 사용 방법
CN107042002B (zh) 一种面部护具的排风装置、换气装置及口罩
CN105771105A (zh) 一种智能防霾装置
JP3136595U (ja) 粉塵防護具
KR102080261B1 (ko) 유해가스 검출 방독면
SU1784234A1 (ru) Шлем
CN111317929A (zh) 防护头罩
CN112494205A (zh) 一种用于有害气体监测的焊接面罩及其应用方法
CN218129622U (zh) 一种防护头罩
AU2012101615B4 (en) A Tradesman's Mask
CN214596850U (zh) 一种生物压电式智能口罩

Legal Events

Date Code Title Description
AS Assignment

Owner name: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:XU, RUI;CHEN, XIAOCHUAN;WANG, HAISHENG;AND OTHERS;REEL/FRAME:038612/0427

Effective date: 20160401

Owner name: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:XU, RUI;CHEN, XIAOCHUAN;WANG, HAISHENG;AND OTHERS;REEL/FRAME:038612/0427

Effective date: 20160401

Owner name: BOE TECHNOLOGY GROUP CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:XU, RUI;CHEN, XIAOCHUAN;WANG, HAISHENG;AND OTHERS;REEL/FRAME:038612/0427

Effective date: 20160401

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE AFTER FINAL ACTION FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS

STPP Information on status: patent application and granting procedure in general

Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED

STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4